用于度量的time OkHttpClient事件的适当方法？

import okhttp3.Interceptor;
import okhttp3.Request;
import okhttp3.Response;

import java.io.IOException;

public class TimingInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
        long startTime = System.nanoTime();

        Request request = chain.request();
        Response response = chain.proceed(request);

        long endTime = System.nanoTime();
        long duration = endTime - startTime;

        System.out.println("Request took: " + duration + " nanoseconds");

        return response;
    }
}

OkHttpClient client = new OkHttpClient.Builder()
        .addInterceptor(new TimingInterceptor())
        .build();